{"filing":{"accession_number":"0001517302-26-000102","cik":"0001517302","ticker":"APAM","company_name":"Artisan Partners Asset Management Inc.","form":"8-K","filing_date":"2026-07-10","report_date":null,"primary_document":"apam-20260710.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/1517302/000151730226000102/apam-20260710.htm"},"events":[{"id":17343,"run_id":15523,"accession_number":"0001517302-26-000102","anchor_item_number":"8.01","event_type":"operational_other","event_domain":"operational","is_material":true,"confidence":0.75,"summary":"The filing discloses preliminary assets under management (AUM) as of June 30, 2026, totaling $183.4 billion, along with a breakdown by investment strategy. While AUM reporting is routine for asset managers, the disclosure includes a material operational development: the termination of a U.S. sub-advisory mandate resulting in approximately $5.7 billion in net outflows from the Value Equity strategy, with an orderly wind-down of the U.S. Value team's strategies expected to continue through Q3. This operational restructuring affecting a significant portion of managed assets qualifies as material to investors assessing the firm's business trajectory.","company_name":"Artisan Partners Asset Management Inc.","ticker":"APAM","filing_date":"2026-07-10","form":"8-K","submitted_at":null,"items":[{"id":15779,"accession_number":"0001517302-26-000102","item_number":"8.01","item_title":"Other Events","event_type":"operational_other","event_domain":"operational","is_material":true,"confidence":0.75,"reasoning":"The filing discloses preliminary assets under management (AUM) as of June 30, 2026, totaling $183.4 billion, along with a breakdown by investment strategy. While AUM reporting is routine for asset managers, the disclosure includes a material operational development: the termination of a U.S. sub-advisory mandate resulting in approximately $5.7 billion in net outflows from the Value Equity strategy, with an orderly wind-down of the U.S. Value team's strategies expected to continue through Q3. This operational restructuring affecting a significant portion of managed assets qualifies as material to investors assessing the firm's business trajectory.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-07-11T00:04:40.615815+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":15779,"accession_number":"0001517302-26-000102","item_number":"8.01","item_title":"Other Events","event_type":"operational_other","event_domain":"operational","is_material":true,"confidence":0.75,"reasoning":"The filing discloses preliminary assets under management (AUM) as of June 30, 2026, totaling $183.4 billion, along with a breakdown by investment strategy. While AUM reporting is routine for asset managers, the disclosure includes a material operational development: the termination of a U.S. sub-advisory mandate resulting in approximately $5.7 billion in net outflows from the Value Equity strategy, with an orderly wind-down of the U.S. Value team's strategies expected to continue through Q3. This operational restructuring affecting a significant portion of managed assets qualifies as material to investors assessing the firm's business trajectory.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-07-11T00:04:40.615815+00:00","company_name":"Artisan Partners Asset Management Inc.","ticker":"APAM","filing_date":"2026-07-10"}]}